Top Software Engineer Jobs in Pittsburgh, PA

Freelancer or small team to perform ongoing Shopify theme edits (PDP/buy-box), design and implement landing pages, create Klaviyo email templates and light technical setup, set up and iterate A/B tests, and run fast, safe small experiments to improve conversion without a full site rebuild.

Build and maintain ZODL's core Rust-based wallet and infrastructure (Zallet and core libraries). Implement protocol features from specifications, improve performance and reliability, support mobile teams, participate in reviews, testing, releases, and respond urgently to bugs and security issues.

Lead backend architecture and implementation for a healthcare scheduling platform rebuild: build FastAPI service controllers and Pydantic schemas, port legacy Python services to FastAPI/SQLAlchemy, own PressW-side cloud infrastructure (EKS, networking, IAM, observability), coordinate migrations and translation layers, drive code quality and testing, and mentor mid-level engineers.

The Full-Stack Developer will design and implement solutions for collaboration platforms, focusing on backend architecture, React-based front-end development, and integrating AI features. Responsibilities include developing services, APIs, user interfaces, and ensuring integration with various systems while utilizing Azure tools.

Build and own user-facing features and core platform architecture across frontend, backend, and ML pipelines. Integrate AI workflows (LLMs, embeddings) for curriculum generation and automated evaluation. Manage end-to-end development: requirements, design, implementation, CI/CD, testing, observability, and iteration while collaborating with product, design, ML, and customer teams.

Design, build, and operate scalable backend services and APIs for a SaaS platform using Python/FastAPI. Ensure reliability, performance, and observability across distributed systems. Work with PostgreSQL, SQLAlchemy, Temporal, Redis, AWS, and Terraform. Build frontend features with React and TypeScript, integrate third-party APIs, adopt AI-assisted development tools, mentor engineers, and drive architecture and developer experience improvements.

The Technical Solutions Consultant leads technical discussions, translates customer requirements, develops RFI/RFP responses, and supports customer development teams integrating APIs, while collaborating with internal teams.

Lead design and delivery of enhancements to a next-generation AI agent platform. Own large features and infrastructure, mentor engineers, set technical standards, drive cross-team initiatives, improve reliability and SLOs, and influence product and process decisions to scale systems supporting millions of interactions.

Senior iOS Developer to design and build secure, high-performance iOS apps using Swift (SwiftUI/UIKit). Implement webview integrations (WKWebView/ASWeb), ASWebAuthenticationSession for OAuth/SSO, JavaScript interop, and native features (camera, push, maps). Ensure responsive web content handling and secure data management. Remote role but must be Bangalore-based with weekly (~1 hour) client office visit to collect a device.

The Senior Backend Engineer will develop core functionalities for AI-driven drug discovery, collaborating with R&D and product teams, managing infrastructure, and ensuring engineering excellence.